Moyno Progressing Cavity Pump. 316 SS. Model: 1L10H. S/N: AS3528. Type: SSX. Capacity 29 gpm at 282 rpms. The Moyno progressing cavity pump is a single screw rotary pump. The pumping action is created by the single helical rotor rolling eccentrically in the double threaded helix of the stator. Reliance Electric Motor, 7-1/2 hp. Reeves Varidrive Module, 6.2: 1 ratio, 420 max rpm, 84 min rpm. Inlets/outlets: (2) 3 in. dia. ports. Overall dimensions: 96 in. L x 25 in. W x 33 in. H. (ACN120).